rana中国林蛙,蛙属ran动词run的过去式Ranunculus regelianusn.扁果毛茛Ran-domization test随机化检验ran around in circlesv.忙得团团转(毫无结果地乱忙一气)Ransohoff's operation奎施托普Ranunculus acris L.[医] 毛茛Ranschburg inhibition郎斯伯格抑制ranitrodiphenyl ether四硝基二苯醚Rana pipiens Schreber[医] 豹纹蛙ran into a stone wallv.碰壁Ranunculus rubrocalyxn.红萼毛茛